Performance of TS-1-Coated Structured Packing Materials for Styrene Oxidation Reaction
Performance of TS-1-Coated Structured Packing Materials for Styrene Oxidation Reaction
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TS-1涂层规整填料在苯乙烯氧化反应中的性能
DOI:
10.1021/cs1001509
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发表时间:
2011-03
期刊:
影响因子:
12.9
通讯作者:
Yeung, King Lun
中科院分区:
文献类型:
--
作者:
Wang, Xiaobin;Zhang, Xiongfu;Wang, Yao;Liu, Haiou;Qiu, Jieshan;Wang, Jinqu;Han, Wei;Yeung, King Lun
Titanium silicalite-1 (TS-1)-coated on stainless steel packing rings of complex geometries provided a large interfacial contact area for improving mass transport processes. Zeolite seeds were assembled using organic linker, and a thin uniform layer of TS-1 catalyst was deposited on the surface by hydrothermal regrowth. The chemical, structural, and catalytic properties of the TS-1 layer were examined. An order of magnitude higher styrene conversion rate was obtained from the TS-1-coated substrates compared with powder. The catalyst was sensitive to pretreatment, and heat treatment in nitrogen provided a 30% higher conversion rate than the air-calcined samples. The N2-pretreated catalyst displayed lower activity loss and better regenerability.
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